New targeted pill shows promise for rare blood cancer

NCT ID NCT03580655

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This Phase 2 study tested avapritinib, a daily tablet that targets a specific genetic mutation, in 107 people with advanced systemic mastocytosis (a rare blood cancer). The main goal was to see how many patients had their tumors shrink or symptoms improve. Results suggest the drug may help control the disease and ease symptoms, but more research is needed.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

avapritinib (a targeted cancer drug taken as a tablet)

What this could lead to

If successful, this could provide a new treatment option that shrinks tumors and improves symptoms for people with advanced systemic mastocytosis.

What could go wrong

This is a single-arm Phase 2 study with no comparison group, so results may not hold up in larger trials. The drug may cause side effects and not work for everyone.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

aggressive systemic mastocytosis mast cell leukemia Mastocytosis, Systemic systemic mastocytosis with an associated clonal hematologic non-mast cell lineage disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • A.O. OO.RR. S.Giovanni di Dio e Ruggi d'Aragona, University of Salerno

    Salerno, 84131, Italy

  • Azienda Ospedaliero-Universitaria Careggi, CRIMM - Centro di Ricerca ed Innovazione per le Malattie Mieloproliferative

    Florence, 50134, Italy

  • Beatson West of Scotland Cancer Centre - NHS Greater Glasgow and Clyde

    Glasgow, G12 0YN, United Kingdom

  • CHU Toulouse - Hôpital Larrey

    Toulouse, 31059, France

  • Centro Ricerche Cliniche di Verona - Azienda Ospedaliera Universitaria Integrata di Verona

    Verona, 37134, Italy

  • Dana Farber Cancer Institute

    Boston, Massachusetts, 02215, United States

  • Guy's and St Thomas' NHS Foundation Trust - Guy's Hospital

    London, SE1 9RT, United Kingdom

  • Herbert Irving Comprehensive Cancer Center

    New York, New York, 10032, United States

  • Huntsman Cancer Institute

    Salt Lake City, Utah, 84112, United States

  • Hôpital Necker-Enfants Malades

    Paris, 75015, France

  • Klinik und Poliklinik für Innere Medizin III, Klinikum rechts der Isar der TU München

    Munich, 81675, Germany

  • Mays Cancer Center

    San Antonio, Texas, 78229, United States

  • Medizinische Universität Wien, Universitätsklinik für Innere Medizin I, Klinische Abteilung für Hämatologie und Hämostaseologie

    Vienna, 1090, Austria

  • Odense University Hospital, Department of Haematology

    Odense, DK-5000, Denmark

  • Oslo University Hospital-Rikshospitalet, Hematology

    Oslo, 0372, Norway

  • Roswell Park Comprehensive Cancer Center

    Buffalo, New York, 14263, United States

  • Rush University Medical Center

    Chicago, Illinois, 60612, United States

  • St. Michael's Hospital

    Toronto, Ontario, M5B 1W8, Canada

  • Stanford Cancer Institute

    Stanford, California, 94305, United States

  • The University of Kansas Cancer Center

    Westwood, Kansas, 66205, United States

  • Uniklinik RWTH Aachen, Klinik für Hämatologie, Onkologie, Hämostaseologie und Stammzelltranslplantation

    Aachen, 52074, Germany

  • University Medical Center Groningen (UMCG)

    Groningen, 9713 GZ, Netherlands

  • University of Michigan

    Ann Arbor, Michigan, 48109, United States

  • University of Pennsylvania, Abramson Cancer Center

    Philadelphia, Pennsylvania, 19104, United States

  • University of Texas, MD Anderson Cancer Center

    Houston, Texas, 77030, United States

  • Universitätsklinikum Hamburg-Eppendorf, Zentrum für Onkologie

    Hamburg, 20246, Germany

  • Universitätsklinikum Leipzig, Medizinische Klinik und Poliklinik I - Hämatologie und Zelltherapie, lnternistische Onkologie, Hämostaseologie

    Leipzig, 04103, Germany

  • Universitätsmedizin Mannheim III. Medizinische Klinik

    Mannheim, 68167, Germany

  • Uniwersytecki Szpital Kliniczny im. Jana Mikulicza-Radeckiego we Wrocławiu, Klinice Hematologii, Nowotworów Krwi i Transplantacji Szpiku

    Wroclaw, 50-367, Poland

  • Uniwersyteckie Centrum Kliniczne, Klinika Hematologii i Transplantologii

    Gdansk, 80-214, Poland

  • Washington University School of Medicine

    St Louis, Missouri, 63110, United States

  • lnstituto de Estudios de Mastocitosis de Castilla la Mancha, Hospital Virgen del Valle - Complejo Hospitalario de Toledo

    Toledo, 45071, Spain